Question about the new 40 gb model

what differences are there between the 40gb and 80gb?....besides morememory what does the 80gb have that the 40gb doesnt?

The 80gb can play some/most PS2 games through software emulation, whereas the 40gb cannot play any PS2 games at all. Also, the 80gb has 4 USB ports versus 2 on the 40gb.

Other then those two things I believe they are identical, except of course for the price, hard drive size and the pack in (80gb has Motorstorm, 40gb has Spiderman 3 on Blu-ray).